76fd020937
pcbit: kill 'may be used uninitialized' warning. although the code does eventually fill the 32 bits it cares about, the variable truly is accessed uninitialized in each macro. Easier to just clean it up now. sc: fix a ton of obviously incorrect printk's (some with missing arguments even) Signed-off-by: Jeff Garzik <jeff@garzik.org> Acked-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/* $Id: shmem.c,v 1.2.10.1 2001/09/23 22:24:59 kai Exp $
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*
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* Copyright (C) 1996 SpellCaster Telecommunications Inc.
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*
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* Card functions implementing ISDN4Linux functionality
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* For more information, please contact gpl-info@spellcast.com or write:
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*
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* SpellCaster Telecommunications Inc.
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* 5621 Finch Avenue East, Unit #3
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* Scarborough, Ontario Canada
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* M1B 2T9
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* +1 (416) 297-8565
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* +1 (416) 297-6433 Facsimile
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*/
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#include "includes.h" /* This must be first */
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#include "hardware.h"
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#include "card.h"
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/*
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* Main adapter array
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*/
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extern board *sc_adapter[];
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extern int cinst;
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/*
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*
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*/
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void memcpy_toshmem(int card, void *dest, const void *src, size_t n)
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{
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unsigned long flags;
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unsigned char ch;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return;
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}
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if(n > SRAM_PAGESIZE) {
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return;
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}
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/*
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* determine the page to load from the address
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*/
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ch = (unsigned long) dest / SRAM_PAGESIZE;
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pr_debug("%s: loaded page %d\n", sc_adapter[card]->devicename,ch);
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/*
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* Block interrupts and load the page
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*/
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spin_lock_irqsave(&sc_adapter[card]->lock, flags);
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outb(((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE) >> 14) | 0x80,
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sc_adapter[card]->ioport[sc_adapter[card]->shmem_pgport]);
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memcpy_toio(sc_adapter[card]->rambase +
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((unsigned long) dest % 0x4000), src, n);
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spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
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pr_debug("%s: set page to %#x\n",sc_adapter[card]->devicename,
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((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE)>>14)|0x80);
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pr_debug("%s: copying %d bytes from %#lx to %#lx\n",
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sc_adapter[card]->devicename, n,
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(unsigned long) src,
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sc_adapter[card]->rambase + ((unsigned long) dest %0x4000));
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}
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/*
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* Reverse of above
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*/
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void memcpy_fromshmem(int card, void *dest, const void *src, size_t n)
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{
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unsigned long flags;
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unsigned char ch;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return;
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}
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if(n > SRAM_PAGESIZE) {
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return;
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}
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/*
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* determine the page to load from the address
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*/
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ch = (unsigned long) src / SRAM_PAGESIZE;
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pr_debug("%s: loaded page %d\n", sc_adapter[card]->devicename,ch);
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/*
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* Block interrupts and load the page
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*/
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spin_lock_irqsave(&sc_adapter[card]->lock, flags);
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outb(((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE) >> 14) | 0x80,
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sc_adapter[card]->ioport[sc_adapter[card]->shmem_pgport]);
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memcpy_fromio(dest,(void *)(sc_adapter[card]->rambase +
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((unsigned long) src % 0x4000)), n);
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spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
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pr_debug("%s: set page to %#x\n",sc_adapter[card]->devicename,
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((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE)>>14)|0x80);
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/* pr_debug("%s: copying %d bytes from %#x to %#x\n",
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sc_adapter[card]->devicename, n,
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sc_adapter[card]->rambase + ((unsigned long) src %0x4000), (unsigned long) dest); */
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}
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#if 0
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void memset_shmem(int card, void *dest, int c, size_t n)
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{
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unsigned long flags;
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unsigned char ch;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return;
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}
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if(n > SRAM_PAGESIZE) {
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return;
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}
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/*
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* determine the page to load from the address
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*/
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ch = (unsigned long) dest / SRAM_PAGESIZE;
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pr_debug("%s: loaded page %d\n",sc_adapter[card]->devicename,ch);
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/*
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* Block interrupts and load the page
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*/
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spin_lock_irqsave(&sc_adapter[card]->lock, flags);
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outb(((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE) >> 14) | 0x80,
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sc_adapter[card]->ioport[sc_adapter[card]->shmem_pgport]);
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memset_io(sc_adapter[card]->rambase +
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((unsigned long) dest % 0x4000), c, n);
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pr_debug("%s: set page to %#x\n",sc_adapter[card]->devicename,
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((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE)>>14)|0x80);
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spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
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}
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#endif /* 0 */
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